Detergent tablet



FIG. 1 is a top plan view of the detergent tablet showing one embodiment of my new design;

FIG. 2 is a back elevational view thereof, and of the embodiments of FIGS. 5 and 6, respectively;

FIG. 3 is a left side elevational view thereof, and of the embodiments of FIGS. 5 and 6, respectively;

FIG. 4 is a bottom plan view thereof, and of the embodiments of FIGS. 5 and 6, respectively;

FIG. 5 is a top plan view of a second embodiment of my new design; and,

FIG. 6 is a top plan view of a third embodiment of my new design. 

The ornamental design for a detergent tablet, as shown and described. 